Question

As we move from left to right across a period, there is regular decrease in atomic radii of the representative elements. This is due to the reason that

• A. the number of energy shells remains the same while nuclear charge decreases
• B. the number of energy shells remains the same while nuclear charge increases
• C. the nuclear charge remains the same while number of shells decrease
• D. both number of shells and nuclear charge remain the same.

Answer 1

Answer: (B)

$Radius \propto\frac{1}{Nuclear \,charge}$